The median nerve travels through the carpal tunnel at the wrist in order to provides sensory innervation to the palmar side and tips of the first 3 ½ digits of the hand. Performing Reverse Phalen’s Test results in deep extension of both wrists, narrowing the carpal tunnel and placing pressure on the median nerve as it passes through the carpal tunnel. If the median nerve is inflamed, prolonged wrist extension can distinctly compromise median nerve conduction, resulting in neuropathic symptoms distal to the point of irritation along the nerve distribution.